BravadaonSteroids

Is the bolt pattern on the 4l60 (in my 98 bravada) the same as the bolt pattern of the 4l70 (trailblazer ss) on the output side. My goal is to put the heavier duty trailblazer ss transfer case along with a 6.0l stroker in the bravada. Does this sound doable without a ton of fabrication? I've seen one other bravada similar to this but dont know if the trans was swapped along with the t-case. Any and all help in this area is appreciated.